The B2B Edition Management APIs let you perform server-to-server operations for managing B2B storefronts. Use these APIs to manage companies, users, addresses, orders, quotes, invoices, payments, shopping lists, and more from an administrative perspective.
These APIs are designed for backend integrations and admin-level operations using store-level API credentials.
B2B Management APIs use the same X-Auth-Token authentication pattern as the main BigCommerce REST APIs. Include your store-level or app-level access token in the request header. In addition, you must include the X-Store-Hash header containing your BigCommerce store hash.
For full details, see Authentication overview and API Accounts.
For B2B guides, getting started content, and conceptual docs, see the B2B Edition docs.